JPS62117376U

JPS62117376U -

Info

Publication number: JPS62117376U
Application number: JP480586U
Authority: JP
Priority date: 1986-01-17
Filing date: 1986-01-17
Publication date: 1987-07-25

Description

[Brief explanation of the drawing]

第１図は本考案の空気弁の切断側面図、第２図
は第１図の―矢視図、第３図は部分拡大図、
第４図はダム放流設備の説明図、第５図は従来の
空気弁の説明図である。１は主ゲート、２は放流管、３は副ゲート、４
は操作室、７は空気管、２０はフロート弁体、２
１は弁箱、２３は空気管、２７はテーパ面、３２
は円錐部、３３は水密ゴム、３９は保温材を示す
。 Fig. 1 is a cutaway side view of the air valve of the present invention, Fig. 2 is a view taken along the - arrow in Fig. 1, and Fig. 3 is a partially enlarged view.
FIG. 4 is an explanatory diagram of a dam discharge facility, and FIG. 5 is an explanatory diagram of a conventional air valve. 1 is the main gate, 2 is the discharge pipe, 3 is the sub gate, 4
is an operation room, 7 is an air pipe, 20 is a float valve body, 2
1 is a valve box, 23 is an air pipe, 27 is a tapered surface, 32
33 is watertight rubber, and 39 is a heat insulating material.

Claims

[Scope of utility model registration request]

A dam discharge facility in which a main gate and a sub-gate installed at the downstream end of the dam discharge pipe are operated in an operation chamber provided above the discharge pipe, which has a tapered surface on the inner periphery near the upper end opening. A valve box is arranged in the operation chamber, and the upper end opening is connected to an air pipe communicating with the outside of the operation room, and the lower end opening is connected to an air pipe communicating with a discharge pipe between the main gate and the sub gate. At the same time, a float valve body having a conical part corresponding to the tapered surface at the upper part and capable of rising by its own buoyancy is disposed within the valve box so as to be movable up and down, and the conical part of the float valve body Alternatively, an air valve characterized in that a ring-shaped watertight rubber is attached to either one of the tapered surfaces of the valve box.